Fastening means



Aug. 15, 1961 H. HALL 2,995,754

FASTENING MEANS Filed Feb. 25, 1961 INVENTOR. HARRY HALL 2,995,754 FASTENING MEANS Harry Hall, 153 Lawrence St., New Hyde Park, N.Y. Filed Feb. 23, 1961, Ser. No- 91,134 6 Claims. (Cl. 1-50) This invention relates to fastening means and more particularly to fastening means of the scissor type having interchangeable die means.

More particularly the invention relates to hand operated scissor type fastening means having interchangeable die means for performing a variety of operations, for instance, inserting eyelets, snap fasteners or zipper staples.

One of the advantages of the present invention is that the single tool may be used interchangeably for a variety of purposes. The die sets for performing the different functions are fixedly mounted on a spring and the spring assemblies are adapted to be snapped into the handle extensions. The spring performs the dual function of also separating the jaws.

Accordingly a principal object of the invention is to provide new and improved fastening means.

Another object of the present invention is to provide new and improved hand operated fastening means.

Another object of the present invention is to provide new and improved hand operated fastening means having interchangeable die means which may be snapped into the holding means.

Another object of the invention is to provide new and improved fastening means for inserting eyelets, snap fasteners and zipper staples.

Another object of the invention is' to provide new and. improved hand operated fastening means comprising a pair of scissor mounted arms, one end of each of said arms being adapted .to be hand held and the other end of said arms being adapted to receive snap-in die sets, said die sets being fixedly mounted on each end of a spring whereby the dies for the different operations may be easily and quickly inserted in the tool.

These and other objects of the invention will be apparent from the following specification and drawings, of which:

FIG. 1 is a perspective view of an embodiment of the invent-ion partially cut away.

FIG. 2 is an elevation detail view of the spring and die means, and

FIGS. 3 and 4 are detail views of the means for holding the snap-in spring mounted dies.

Referring to the figures the invention generally comprises a pair of scissor type arms 1 and 2 which are pivotally mounted on a shaft 3. One end of each arm is formed as a handle to fit into the hand of the user.

The other end of each arm has a hollow configuration with a slot 5, FIG. 3, which is adapted to receive the snapin die means. The die sets each comprise an upper die 6 and a lower die 7 which are fixedly mounted on the ends of a leaf or wire spring 8 which has a general U-shape. The apex 9 of the U is deformed inwardly to fit against the shaft 3. The die sets are fixedly mounted to the spring 8, for instance by riveting, crimping or other conventional means. Each die has an annular slot 10, which is adapted to fit into the curved slot at the work end of each of the arms 1 and 2, being held therein by the pressure of the spring 8 against the shaft 3 and against the slotted ends of each of the arms 1 and 2. The spring 8 is preferably formed with inwardly extending curves 8A and 8B which are deformed inwardly in order to remove the die sets from the tool and also when the jaws are closed.

With the present arrangement the die sets never become separated and are automatically aligned by the action of the spring and the holding arms. The die sets themselves atent may be conventional for the particular function desired, for instance the die set 6 and 7, FIG. 1, is adapted to hold a staple type fastener, for instance of the type used as a stop at the bottom end of zippers.

The upper die 6 has suitable holding means for the staple which may be a magnet 15 inserted in the die, the die face 6A being recessed to properly align the staples. Other conventional holding means for nonmagnetic staples may be used, for instance, friction clips, or a friction holding cap 11 clipped or crimped onto the die. The bottom die 7 has suitable recesses 7A, 7B etc. for forming over the ends of the staple in conventional manner, the member 7 being termed the anvil.

Other conventional die sets for forming eyelets or snap fasteners or other devices may be used. The particular design of the die sets for additional particular purposes are outside the scope of the presentinvention.

Therefore, the present invention provides a useful tool having interchangeable die means so that the tool may be used as a multi-purpose tool for various particular fastening operations. This advantage is provided by having a removable spring mounting member which has the specific die sets fixedly attached to its ends; the spring mounted assembly being adapted to be snapped into and out of the holding tool. This arrangement provides an economical and versatile tool which will perform a variety of functions with a minimum cost. The major cost is in the handle holding means and the cost of the spring mounted die sets is relatively small. Therefore, as the dies become worn or broken they can be easily replaced without major cost and, in addition, a great variety of dies for particular purposes may be inserted in the tool. The tool cooperates with the different spring mounted die sets for eyelets, snap fasteners, zipper staples, etc. to hold them in proper alignment for optimum operation.

Many modifications may be made by those who desire to practice the invention without departing from the scope thereof which is defined by the following claims.

I claim:

1. Fastening means comprising a pair of scissor type arms pivotally mounted on a connecting shaft, one end of each of said arms being adapted to be hand held, the other end of each of said arms having means to hold spring mounted dies, a removable leaf spring having a general U shape and having a notch at the apex of said U adapted to fit against said shaft, and die means fixedly mounted to each end of such spring whereby said die means may be interchangeably inserted and removed from said scissor arms.

2. Apparatus as in claim 1 wherein said die means ineludes magnetic means.

3. Fastening means comprising a pair of scissor type arms pivotally mounted on a connecting shaft, one end of each of said arms being adapted to be hand held, the other end of each of said arms having a slotted socket, a removable spring having a general U shape and having a notch at the apex of said U adapted to fit against said shaft, the ends of said spring being adapted to fit in said sockets, and die means fixedly mounted to each end of such spring, each of said die means having an annular slot adapted to fit in said slotted socket, whereby said die means may be interchangeably inserted and removed from said scissor arms.

4. Apparatus as in claim 3 wherein said die means ineludes holding means for the article to be inserted.

5. Fastening means comprising a pair of plier type anms pivotally mounted on a connecting shaft, one end of each of said arms being adapted to be hand held, the other end of each of said arms having socket means to hold spring mounted dies, a removable spring having a general U shape and having a notch at the apex of said U adapted to fit against said shaft, the ends of said spring bearing out- 3 WardIy against the jaws of said arms, and die means fixedly mounted to each end of such spring whereby said spring mounted die means may be interchangeably inserted and removed from said scissor arms.

6. Removable die means 'for a hand tool of the type having a pair of scissor arms pivotally mounted on a. shaft 4 7 comprising a spring member having a general U shape, the apex of said U portion being crimped inwardly to fit against said shaft, and matched die means mounted on the ends of said spring.

No references cited. 

